What is a reflex arc?
The path that nerve impulses follow during a reflex action
The time it takes for a reflex action to occur
The strength of a reflex action
The part of the brain that controls reflex actions
The path that nerve impulses take during a reflex action is known as the reflex arc. It has an effector, a motor neuron, a sensory neuron, an interneuron, and a sensory receptor. A signal is sent from the sensory receptor, which recognises the stimulus, to the sensory neuron, which then delivers the signal to the spinal cord. The motor neuron transmits the response from the interneuron, which processed the signal, to the effector (often a muscle or gland), triggering a reflexive reaction.
Option 1 is the correct answer.